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Finding the Fourth Proportional to 529.67, 794.55 and 144.92

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Solution

The fourth proportional to 529.67, 794.55 and 144.92 is: 217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.67 : 794.55 = 144.92 : x
  2. Step 2: Convert to fraction form
    529.67/794.55 = 144.92/x
  3. Step 3: Cross multiply
    529.67x = 794.55 × 144.92
  4. Step 4: Simplify right side
    529.67x = 115,142.21
  5. Step 5: Solve for x
    x = 115,142.21/529.67
  6. Step 6: Final answer
    x = 217.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.